Drive Elsewhen from the keyboard and summon it with Super+Ctrl+Alt+E (#13445)

* Navigate Elsewhen from the keyboard and summon it with Super+Ctrl+Alt+E

Up and down walk home and the cities, lighting the picked row and turning
the globe to it. Left and right move the clocks an hour, held until Escape
or close. Escape now clears a shifted time before leaving the globe.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Reach Add a city from the keyboard and shift time past a day

Down past the last city selects Add a city, where Return or Space opens the
search. The arrow keys no longer stop at twelve hours, and shifts past a day
read in days.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Delete the picked Elsewhen city from the keyboard

Delete (or x) removes the picked city and moves the cursor to the one that
takes its place. The picked row shows its × so the target is plain. Delete
now reaches every panel's deleteRequested, as it already does in the
clipboard and the menu.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Center bar glyphs on the open-panel underline

The 16px icon canvas in the 27px slot was snapped from 5.5 to 6, and the
glyph's fractional centering correction was snapped too, so glyphs sat up to
0.9px right of the underline, which centers on the slot. Both are now placed
exactly, and the geometry test measures against the slot to within 0.05px.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

shell/plugins/panels/elsewhen/CityRow.qml

@@ -45,7 +45,9 @@ Rectangle {
   implicitHeight: (pad - panel.capGap) + rowLabels.implicitHeight + stripGap + strip.trackHeight + pad
   radius: Style.cornerRadius
   // Opaque: knocked-aside rows pass over one another and over the globe.
-  color: Model.mix(Color.popups.background, foreground, rowHover.hovered ? phaseFill + 0.05 : phaseFill)
+  // The picked city lights up like a hovered one, so the arrow keys show where they are.
+  readonly property bool lit: rowHover.hovered || (panel.focusIndex === index && !panel.addSelected)
+  color: Model.mix(Color.popups.background, foreground, lit ? phaseFill + 0.05 : phaseFill)
 
   // Transforms leave the Column's layout alone: the knock that clears the
   // globe's way, then the drag offset.
@@ -288,7 +290,8 @@ Rectangle {
     fontFamily: row.fontFamily
     fontSize: Style.font.bodySmall
     enabled: row.removable
-    opacity: row.removable && rowHover.hovered ? 1 : 0
+    // Shown on the keyboard's pick too, so Delete's target is plain.
+    opacity: row.removable && row.lit ? 1 : 0
     visible: opacity > 0
     Behavior on opacity { NumberAnimation { duration: 120 } }
     onClicked: row.panel.removeCityAt(row.index)